Home / 289,869.28-400,052.92-193,067.76

Finding the Fourth Proportional to 289,869.28, 400,052.92 and 193,067.76

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Solution

The fourth proportional to 289,869.28, 400,052.92 and 193,067.76 is: 266,455.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,869.28 : 400,052.92 = 193,067.76 : x
  2. Step 2: Convert to fraction form
    289,869.28/400,052.92 = 193,067.76/x
  3. Step 3: Cross multiply
    289,869.28x = 400,052.92 × 193,067.76
  4. Step 4: Simplify right side
    289,869.28x = 77,237,321,145.86
  5. Step 5: Solve for x
    x = 77,237,321,145.86/289,869.28
  6. Step 6: Final answer
    x = 266,455.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.